Improved plastering-trowel



waited tapes @stent (Mii-tra SAMUEL AULT, or 'BRIDGTOWN NEAR cANNocK,ENGLAND.'

Letters Patent No. 92,506, datedluly 13, 1869; patented inEngllmdltlavember 2, 1868.

narnovnn PLAsTnRINrRovi-mn The Schedule referred to in these LettersPatent and making part of the'same.

vented or discovered new and useful Improvements in Plaste1ing-Trowels;and I, the ,said SAMUEL AULT, do hereby declare the nature of the saidinvention, and in what manner the same is to be performed, to beparticularly describedA and ascertained in and by the followingstatement thereof; that is to 'Say-1 Plastering-trowels, as ordinarilyconstructed, consist of a fiat plate of steel, to the upper side ofwhich a holder, which is grasped by the hand iu using the trowel, ispermanently fixed.

. My Iinvention consists in constructing th'e holders ofplasteringtrowels, and securing them to theplates of the trowels, in themanner hereinafter described, and illustrated in the accompanyingdrawing', whereby the said holders are made capable of being readilyconnected to or disconnected from the plates of the said trowels.

- In constructing a plastering-trowel according to my invention, I makethe holder of two uprights or tangs, between which a screw, pin, or rodis secured, near the tops .of the said uprights or tangs.

This pin or rod carries the wooden handle, by which the holder isgrasped while using the trowel.-

,Ou the bottom ends of the' said uprights, and

a hollow'dovetail or seat is xed, the said dovetail seat being of a sizeand figure suited to receive the taper dovetail on the bottom of theholder.v

By engaging the dovetail-plate with the seat on the tr'owel-plate, theholder of the trowel is connected .with the trowel-plate, and bywithdrawing the dovetail-plate from the said seat, the said holder maybe disconnected from the trowel-plate.

' Figure 1 represents in side elevation, and

Figure 2, in end elevation, a plasteringtrowel, constructed according tomy invention.

Figure 3 represents a plan, and

Figure 4, an end elevation of the plate of the trowel, with theremovable holder disconnected therefrom.

,Figure represents, in side elevation, (partly in scction,) the holderseparately, and

Figure G represents au end elevation of the same.

The same letters of reference are employed to indicate the same parts ineach of the figures..

' a is the plate of the trowel, and

b b2 is the holder, capable, at pleasure, of being connected with, anddisconnected from the 'said plate a. t

The said holder consists of two steel uprights or tangs, b2 b2, betweenwhich the wooden handle or grip b is supported, by the screw-pin or rodc, the said pin or rol being secured near the. tops of the said uprigbtsor ta'ngs.

On the bottom ends of the said uprights b2 b2, and made in one piecetherewith, is a dovetailplate, d,

This dovetail-plate d is taper,'being.wider at one end than at the otherend.

4The shape of the plate dis best seen in figs. 2

On the upper side of the steel plate aoi' the trowel, a. hollow dovetailor seat, e, is xed, by the rive r i 'Tiiaeaii hollow dovetail or seate-has somewhat of a trough-shape, and is of a size and ligure proper toreceive the taper dovetail-plate d, on the bottom o; the holder. A

When it is wished to connect the holder to the -trowel-plate, thevnarrow end of the dovetail-plated, at the bottom of the ls aid holder,is inserted in the wide end of the dovetail-seat e, on the saidtrowelplate a, and by -a sliding motion, the said dovetailplate ci ispassed into, and made to fill up the said seat, as seen in iig. 2.

The holder of the trow'el is thus connected with the trowel-plate. n 'dWhen the trowel-plate is worn, or when, for any other reason, it iswished toremoveits holder therefrom, the said holder may, by sliding ittoward the wide end of the dovetail-seat e, be'disconnected from thetrowel-plate, and be connected with afresh trowelplate, provided with aseat of the kind described.

By my invention, the same holder can thus be used; with any number oftrowel-plates.

The dovetail-seat may be made by tasting, 'orwrought by hand, orotherwise, into the required ligure.

I prefer'to' make the uprights or tangs, and bottom'4 'dovetail-plate ofthe holder, a'nd the dovetail-seat, of steel, but they may be made ofbrass, malleable iro'rp or other hard met-al or alloy.,v

Instead of making the dovetail-seat in one piece, it may bemade in twopieces, and instead of making a continuous seat on the trowel-plate,short hollow dovetail pieces or end seats may b e made, at the properdistances apart, on the trowel-plate, to receive the dovetail orconnecting-plate of the holder.

I prefer, however, the form of my invention renresented in the drawing.

v'Having thus described the nature of my invention, and the manner inwhich the same is to be performed, I Wish it to be understood that I -donot limit myself to the precise details herein described andillustrated,

the nature Yof invention; but4 to be readily connected to ordisconnected from the l I claim as my inventionl trowel-plate,substantially as described and illustrated.

The improvements in plastering-trowels, hereinbe SAMUEL AULT. [11. s.]`

fore described, and illustrated in the accompanying drawing, that is tosay', making onthe bottom of the Witnesses:

holder of plastering-trowels, a. tapering dovetail or GEORGE SHAW,connecting-plate, and making on the upper side of the 7 Cannon Street,Birmingham. plate of thesaid trowels, a correspondingly tapering RICHARDSKERRETT,

hollow dovetail. or seat, toA receive the seid dovetal or l7 CaimanStreet, Biwnfingham.

as the same may be varied without departing from connecting-plate,forthe purposeofenabling the holder

